The TV sends whatever it wants to the GPU. If it lies, then you'll see those lies. This only works for digital connections as far as I know - so dvi-i or hdmi. I don't have DP, so don't KNOW what that does, but I'd expect DP would show the same as HDMI shows. VGA communicates only enough to prevent the GPU from over-driving the monitor and killing it. That was a concern in the early 1990s.
Code:
sudo get-edid | parse-edid
Shows what the GPU is told. If there are any converters or KVMs between the GPU and the monitor, expect those to be shown. Si?
For example,
Code:
Section "Monitor"
Identifier "DELL U2412M"
ModelName "DELL U2412M"
VendorName "DEL"
# Monitor Manufactured week 10 of 2013
# EDID version 1.3
# Analog Display
Option "SyncOnGreen" "true"
DisplaySize 520 320
Gamma 2.20
Option "DPMS" "true"
Horizsync 30-83
VertRefresh 50-61
but going through a powered DVI-I -to- VGA converter to the same monitor (KVM switch), I see:
Code:
Section "Monitor"
Identifier "\�"
ModelName "\�"
VendorName "AGO"
# Monitor Manufactured week 45 of 2013
# EDID version 1.3
# Digital Display
DisplaySize 300 230
Gamma 1.97
Option "DPMS" "true"
The 2nd answer is about the converter device, not the actual monitor.
The monitor does say "Dell" on the front and I think it is a 24 inch 1920x1200p @ 60hz model. https://www.dell.com/is/business/p/dell-u2412m/pd It has been a good monitor. Replaced a Gateway 24inch that died 1 day. I've been looking at 4K options the last few months, but decided to wait for better quality to get cheaper based on some feedback from about 15 friends.
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